Abstract: An external environment recognition apparatus includes an in-vehicle detector and a microprocessor. The microprocessor is configured to perform: recognizing a surface of the road and a three-dimensional object on the road for each frame as the road surface information based on a three-dimensional point cloud data including distance information for every one of a plurality of detection points in a matrix shape acquired in every frame by the in-vehicle detector; determining an interval of detection points of the three-dimensional point cloud data as a scanning angular resolution of the electromagnetic wave based on a size of a predetermined three-dimensional object and a distance to the predetermined three-dimensional object; and taking a predetermined avoidance measure so that at least one of the scanning angular resolution and a number of detection points corresponding to the interval of detection points does not exceed a predetermined limit value.

Abstract: An object detection apparatus includes a microprocessor configured to perform: separating point cloud data into moving point cloud data and stationary point cloud data; calculating, for each measurement point constituting the stationary point cloud data, necessary multiple required for superimposing processing based on a distance from a moving body to each measurement point to add the necessary multiple to the data; recording the stationary point cloud data to which the necessary multiple has been added; extracting a measurement point to be superimposed from the stationary point cloud data of a past frame recorded in the memory, based on the necessary multiple; performing the 10 superimposition processing to superimpose data of the measurement point to be superimposed on the stationary point cloud data of a new frame; and detecting a stationary object based on the stationary point cloud data of the new frame after the superimposing.

Abstract: An optical signal switching device includes: an optical branching unit configured to receive optical signals from a plurality of light sources, respectively, and selectively switch a destination to which each of the optical signals is output to one of output destinations of a plurality of channels, a crossing unit configured to cross at least some optical signals among the optical signals output from the optical branching unit, and output terminals for each of a plurality of channels, each configured to output the optical signals output from the crossing unit.

Abstract: An in-vehicle detection apparatus includes a first scanning unit scanning and irradiating optical signals in a first direction and a second scanning unit scanning and irradiating optical signals in a second direction intersecting the first direction. At least one of the first and second scanning units includes: a first optical branching unit configured to selectively switch a destination to which each of the optical signals from a plurality of light sources is output to one of output destinations of a plurality of channels, a crossing unit configured to cross at least some optical signals among the optical signals output from the first optical branching unit, and a second optical branching unit configured to receive the optical signals output from the crossing unit, and selectively switch a destination to which each of the optical signals is output to one of output destinations of a plurality of channels.

Abstract: An object detection apparatus includes: a detector configured to irradiate with an electromagnetic wave, to detect an exterior environment situation in the surrounding of a mobile body based on a reflected wave; and a microprocessor configured to perform: acquiring point cloud data, the point cloud data indicating a detection result of the detector; calculating an absolute moving speed of each of a plurality of measurement points corresponding to the point cloud data; classifying the point cloud data into moving point cloud data and stationary point cloud data based on the absolute moving speeds; extracting, from the stationary point cloud data, change point cloud data corresponding to measurement points, a moved amount of which are equal to or larger than a predetermined threshold; and detecting an object in the surrounding of the moving body based on the moving point cloud data and the change point cloud data.

Abstract: A high-pressure container inspection method includes a photographing step, an acquiring step, and a determining step. In the photographing step, a carbon fiber is photographed while an outer surface of the carbon fiber wound on a converging portion in an outer peripheral surface of a liner is irradiated with light. In the acquiring step, density information obtained by the reflection of the light with respect to the outer surface of the carbon fiber by the photographing is acquired. In the determining step, the density information obtained by the acquiring step is compared with preset density information to determine whether a shape of a reinforcing layer of the converging portion is good or bad.

Abstract: An external environment recognition apparatus includes an in-vehicle detector and a microprocessor. The microprocessor is configured to perform: recognizing a surface of the road and a three-dimensional object on the road for each frame as the road surface information based on a three-dimensional point cloud data including distance information for every one of a plurality of detection points in a matrix shape acquired in every frame by the in-vehicle detector; determining an interval of detection points of the three-dimensional point cloud data as a scanning angular resolution of the electromagnetic wave based on a size of a predetermined three-dimensional object and a distance to the predetermined three-dimensional object; and taking a predetermined avoidance measure so that at least one of the scanning angular resolution and a number of detection points corresponding to the interval of detection points does not exceed a predetermined limit value.

Abstract: A high-pressure container inspection method includes a photographing step, an acquiring step, and a determining step. In the photographing step, a carbon fiber is photographed while an outer surface of the carbon fiber wound on a converging portion in an outer peripheral surface of a liner is irradiated with light. In the acquiring step, density information obtained by the reflection of the light with respect to the outer surface of the carbon fiber by the photographing is acquired. In the determining step, the density information obtained by the acquiring step is compared with preset density information to determine whether a shape of a reinforcing layer of the converging portion is good or bad.